CODEWITHSUNDEEP
androidjava-threads
user3194684
user3194684

Reputation: 81

How can I be sure a thread is complete before continuing?

I've just started using threads in Android java. I'm launching a thread from my main activity, but I need to be sure it has completed before continuing with the main logic flow.

The code is:

    MyClass myclass = new MyClass();

       new Thread() {
           public void run() {
               myclass.myMethod();  // Do some work here

           }
       }.start();

// More work here which assumes myMethod() has completed

The work in myMethod involves a url call, so it might take a few seconds and I need to be sure it's complete before continuing. Can anybody suggest the best way to do this? Many thanks

Upvotes: 0

Views: 42

Answers (1)

BochenChleba
BochenChleba

Reputation: 288

You can use CountDownLatch:

CountDownLatch latch = new CountDownLatch(1); // create latch object with counter set to 1
new Thread() {
           public void run() {
               myclass.myMethod();  // Do some work here
               latch.countDown();  // decrement counter from 1 to 0
           }
       }.start();
latch.await();  // await until counter in latch reaches 0

You should also consider using some library for handling async operations in Android like rxJava or AsyncTask.

Upvotes: 1

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